Prenowitz, Walter, 1906- Join geometries: a theory of convex sets and linear geometry/ Walter Prenowitz and James Jantosciak. - New York: Springer-Verlag, c1979. - xxi, 534 p.: ill.; 25 cm. - Undergraduate texts in mathematics . Includes index. Bibliography: p. 527. ISBN: 0387903402 LCCN: 79001457 //r86 Subjects--Topical Terms: Geometry; Dewey Class. No.: 516 / P926j